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(Circulation Research. 1999;85:4.)
© 1999 American Heart Association, Inc.

Cardivascular News

Circulation Research Online Only

July 9, 1999

Eduardo Marbán, MD, PhD Editor in Chief

	Introduction

 
This new era for Circulation Research is filled with innumerable opportunities for growth in the dynamic environment of Web publishing. The field of cardiovascular research is constantly evolving, and Circulation Research intends to make creative use of the new technology. Thus, we are pleased to announce the launch of online-only UltraRapid Communications as electronic pages in Circulation Research Online. This new category of UltraRapid Communications is designed specifically for the expeditious publication of cutting-edge research.

To denote which articles are published online only, a blue star appears next to the title of the article on the cover, under the heading of Circulation Research Electronic Pages. Further, this blue-bordered page displays the full abstract in the print issue; the full-length article can be accessed at www. circresaha.org. UltraRapid Communications can be cited in the same way as other articles that appear in the printed journal and will be tracked in Index Medicus, MEDLINE, PubMed, and other indexing services. This article and all future online-only articles will be denoted on the Table of Contents as e-pages.

UltraRapid Communication

Distribution and Prevalence of Hyperpolarization-Activated Cation Channel (HCN) mRNA Expression in Cardiac Tissues

Wenmei Shi, Randy Wymore, Hangang Yu, Jiying Wu, Rigel T. Wymore, Zongming Pan, Richard B. Robinson, Jane E. Dixon, David McKinnon, Ira S. Cohen

Abstract—HCN cation channel mRNA expression was determined in the rabbit heart and neonatal and adult rat ventricle using RNase protection assays. In the rabbit SA node, the dominant HCN transcript is HCN4, representing >81% of the . . . [Full Text of this Article]